Nearly 50,000 people have expressed an interest in going to the Downing Street demonstration and it has received the backing of a number of MPs and high-profile supporters.

But there are also other demonstrations around the country planned - 27 at the time of writing. You can find out more information about your local demo here.

Ryan Kang/AP
Demonstrators gather at at Los Angeles International Airport to protest agsainst the ban

2. Sign the petition

It may have already reached more than one million signatures but this is by no means a record. The most signed government petition, calling for a second referendum on UK membership of the European Union, achieved more than four million signatures.

The Trump petition runs for six months, so there is still plenty of time to add your voice to the debate.

4. Donate

The organisation said it had received more than $24 million (£19 million) in donations over the weekend, compared to the $4 million (£3.1 million) it usually receives annually.

But there is still a long way to go in the fight, so if you want to support the ACLU’s work, you can donate here.

Singer Sia vowed to match up to $100,000 in donations to the ACLU and hours later, longtime Trump critic Rosie O’Donnell matched the “Chandelier” singer’s pledge in a tweet Saturday that carried the same “Resist” hashtag.

A number of other celebrities, including Hollywood producer Judd Apatow and Scrubs star Zach Braff, also pledged funds to the organisation.

On a wider level, there are a range of charities which help refugees from countries included in the ban, many of which are included here.

5. Learn how to help people who have suffered hate crime

There are fears this latest move by the US’ new president could spark incidents of hate crime in the UK.

While many have condemned such responses, some of us still feel unsure about how to act if they witness such an incident.